CN204157050U - Coaxial with source of sound loud speaker - Google Patents
Coaxial with source of sound loud speaker Download PDFInfo
- Publication number
- CN204157050U CN204157050U CN201420257019.XU CN201420257019U CN204157050U CN 204157050 U CN204157050 U CN 204157050U CN 201420257019 U CN201420257019 U CN 201420257019U CN 204157050 U CN204157050 U CN 204157050U
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- phonation unit
- ring
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- sound
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 42
- 230000004308 accommodation Effects 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000000613 ear canal Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a kind of coaxial with source of sound loud speaker, comprise bass phonation unit and alt phonation unit, described bass phonation unit is coaxially nested with outside described alt phonation unit; Described bass phonation unit comprises two magnet, single magnetic gap mechanism, is provided with vibration sounding diaphragm and the terminal block of single-tone circle; Optionally be equipped with resistance magnet ring in described bass phonation unit, in described resistance magnet ring, be equipped with described alt phonation unit; The vebrato source point of alt phonation unit described in the vebrato source point horizontal alignment of described bass phonation unit.The utility model is by being coaxially nested with outside alt phonation unit by bass phonation unit, reduce loud speaker volume, and the source of sound point making sounding vibrate coexists on a datum level, make phonation unit have wider electrical adjusting range, coaxially not only can send bass but also can alt be sent with source of sound loud speaker.
Description
Technical field
The present invention relates to the technical field of structures of loud speaker phonation unit, refer in particular to a kind of coaxial with source of sound loud speaker, bass phonation unit is coaxially nested with outside described alt phonation unit, and the vebrato source point of alt phonation unit described in the vebrato source point horizontal alignment of this bass phonation unit.
Background technology
Traditional conventional earphone or loudspeaker sound box with sound are by single loud speaker phonation unit sounding, be not easy to send comparatively broad sound, send stronger bass and just must lose some alts, or in order to reach comparatively broad sound, select multiple phonation unit to load in ear casing or Horn loudspeaker box, as, by independently bass phonation unit and alt phonation unit all load in ear casing or Horn loudspeaker box, thus, occupy the volume of earphone or Horn loudspeaker box, also increase the volume of earphone.
Utility model content
The present invention overcomes above-mentioned deficiency of the prior art, there is provided a kind of coaxial with source of sound loud speaker, bass phonation unit is coaxially nested with outside described alt phonation unit, reduce loud speaker overall volume, and the sounding vebrato source point of bass phonation unit and alt phonation unit is coexisted on the datum level of a level, make phonation unit have wider electrical adjusting range.
The one of the present invention is coaxial with source of sound loud speaker, comprising: an alt phonation unit, has vebrato source point and a terminal block; One bass phonation unit is single magnetic gap mechanism, and vibration sounding diaphragm and the terminal block with single-tone circle are formed, and have a vebrato source point; This bass phonation unit is coaxially nested with outside this alt phonation unit, and the vebrato source point of this bass phonation unit is positioned on identical level reference with the vebrato source point system of alt phonation unit.
In a preferred embodiment, this alt phonation unit is moving-iron type phonation unit, circular electric magnetic-type moves iron phonation unit, square electric magnetic-type moves iron phonation unit, the wherein one of moving-coil type phonation unit, silk ribbon formula phonation unit, piezo-electric ceramic sounding chip module, piezo-electric ceramic sounding chip bonding sounding vibrating diaphragm or semiconductor chip phonation unit.
In a preferred embodiment, the junction that is nested with of this alt phonation unit and bass phonation unit is provided with a resistance magnet ring, in order to the magnetic field in the magnetic field and alt phonation unit of separating bass phonation unit.
In a preferred embodiment, this resistance magnet ring is a tube-in-tube structure, and inner system places location for middle pitch height phonation unit, and outside system is nested with fixing for the magnetic conduction pedestal of bass phonation unit.
In a preferred embodiment, this bass phonation unit comprises: a ring-type magnetic conduction pedestal, the core of this ring-type magnetic conduction pedestal is the located space of hollow form, this located space system is nested with fixing for alt phonation unit, the body part of this ring-type magnetic conduction pedestal is provided with the ring-type accommodation space of end face opening, and the body part of this ring-type magnetic conduction pedestal comprises the internal ring wall and external annulus opening external annulus internal ring wall that form face, institute treetop opening; One ring-type first magnet and ring-type second magnet, this ring-type first magnet is arranged on the interior also position of described accommodation space, fits with internal ring wall; This ring-type second magnet is arranged on the outer also position of described ring-type accommodation space, fits, form magnetic gap between described ring-type first magnet and ring-type second magnet with described external annulus;
One first magnetic guiding loop and one second magnetic guiding loop, this first magnetic guiding loop is fixed on the upper surface of described ring-type first magnet, and described second magnetic guiding loop is fixed on the upper surface internal ring wall external annulus of described ring-type second magnet;
One vibration sounding diaphragm, this vibration sounding diaphragm system comprises a ring-type annular sound diaphragm, described ring-type sound diaphragm is fixed on the internal ring wall of body part and the end of external annulus of described ring-type magnetic conduction pedestal, and access node one voice coil loudspeaker voice coil below ring-type sound diaphragm, forms a vebrato source point in junction; Voice coil loudspeaker voice coil stretches into the magnetic gap split shed that described ring-type first magnet and ring-type second magnet are formed; One terminal block, this terminal block system is incorporated on the bottom surface outer bottom of this magnetic conduction pedestal, is the connecting line for fixing voice coil loudspeaker voice coil.
In a preferred embodiment, this vibration sounding diaphragm more comprises flanging in an external press edge and, the outer ring edge of sound diaphragm is fixed in this external press edge system, and the interior ring edge of sound diaphragm is fixed in interior flanging system, external press edge connects the end of the external annulus of magnetic conduction pedestal, and interior flanging connects the internal ring wall end of ring-type magnetic conduction pedestal, close described ring-type magnetic conduction pedestal external annulus internal ring wall openings at opening part.
In a preferred embodiment, the bottom surface of this magnetic conduction pedestal is provided with air-vent, outside in order to the air discharge accommodation space that vibration sounding diaphragm is produced because of vibration.
In a preferred embodiment, more comprise an air-flow damping gauze, the outer bottom in magnetic conduction base bottom surface binds in this air-flow damping gauze system, and is covered by air-vent, in order to adjust the air mass flow of chamber.
In a preferred embodiment, this sound diaphragm is composite film material.
In a preferred embodiment; more comprise a dustproof protective cover; this dustproof protective cover system is incorporated into above bass phonation unit and alt phonation unit; the sound of this bass phonation unit sends from the bass sender of dustproof protective cover, and the sound of alt phonation unit sends from the alt sender of dustproof protective cover.
Accompanying drawing explanation
Fig. 1 is that the present invention is coaxially with the decomposing schematic representation of source of sound loud speaker;
Fig. 2 is Fig. 1 generalized section;
Fig. 3 is that the present invention is coaxially with the front schematic perspective view of source of sound loud speaker;
Fig. 4 is that the present invention is coaxially with the back side schematic perspective view of source of sound loud speaker;
Fig. 5 is that the present invention is coaxially with another enforcement schematic diagram of source of sound loud speaker;
Fig. 6 is that the present invention is coaxially with the decomposing schematic representation of source of sound loud speaker;
Fig. 7 A ~ 7F is that the present invention is coaxially with the alt phonation unit schematic diagram of source of sound loud speaker; And
Fig. 8 is that the present invention is coaxially with the vibration sounding diaphragm schematic diagram of source of sound loud speaker.
Drawing reference numeral is described as follows:
1 air-flow damping gauze 2 alt phonation unit
3 magnetic conduction pedestal 31 located space
32 accommodation space 321 air-vents
322 external annulus 323 internal ring walls
324 confining surface 325 openings
4 terminal block 501 first magnet
502 second magnet 601 first magnetic guiding loops
602 second magnetic guiding loops 7 hinder magnet ring
8 voice coil loudspeaker voice coil 9 vibration sounding diaphragms
901 external press edge 902 sound diaphragms
Flanging 10 dustproof protective cover in 903
11 bass sender 12 alt senders
1301 vebrato source point 1302 alt vebrato source points;
14 alt phonation unit terminal blocks
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, be that the multitone ring of the present invention is coaxially with source of sound loud speaker, mainly comprise bass phonation unit 100 and an alt phonation unit 2, this bass phonation unit 100 is coaxially nested with outside this alt phonation unit 2, in the present embodiment, described alt phonation unit 2 comprises a vebrato source point 1302 and alt phonation unit terminal block 14, is moving-iron type alt phonation unit in the alt phonation unit 2 that the present embodiment adopted;
This bass phonation unit 100 is single magnetic gap mechanism, system comprises a ring-type magnetic conduction pedestal 3, the core of this ring-type magnetic conduction pedestal 3 is the located space 31 of hollow form, the body part of this ring-type magnetic conduction pedestal 3 is provided with the accommodation space 32 of end face opening 325, the body part of this annular magnetic conduction pedestal 3 comprises and forms the internal ring wall 323 and external annulus 322 that described end face opens, bottom surface away from end face opening 325 is confining surface 326, and this bottom surface is provided with air-vent 321;
Ring-type first magnet 501 and ring-type second magnet 502 is positioned with in the accommodation space 32 of this annular magnetic conduction pedestal 3, this the first magnet 501 area is less than the second magnet 502, and the section width of the first magnet 501 and the second magnet 502 and be highly all less than accommodation space 32 section width and height, the bottom surface of this first magnet 501 and the second magnet 502 is all the confining surface 324 being fixed on accommodation space 32, wherein, this first magnet 501 is the wall fitting in accommodation space 32 internal ring wall 323, and the second magnet 502 is the wall fitting in accommodation space 32 external annulus 322, the first magnet 501 and the second magnet 502 is made to form a magnetic gap between accommodation space 32.
One first magnetic guiding loop 601 and one second magnetic guiding loop 602, this first magnetic guiding loop 601 is that the first magnet 501 upper surface is fixed in bonding, and the second magnetic guiding loop 602 is the upper surface binding and be fixed on the second magnet, make the first magnet 501, second magnet 502 and the first magnetic guiding loop 601 and the second magnetic guiding loop 602 is accommodating is positioned in the accommodation space 32 of magnetic conduction pedestal 3, this first magnetic guiding loop 601 and the second magnetic guiding loop 602 not emergence go out the opening 325 of magnetic conduction pedestal 3;
The opening 325 of this magnetic conduction pedestal 3 is combined with a vibration sounding diaphragm 9, this vibration sounding diaphragm 9 is comprise flanging 903 in an annular sound diaphragm 902 of annular external press edge 901, one and an annular, this annular sound diaphragm 902 cording has an outer ring edge and an interior ring edge, stationary annular external press edge 901 on this outer ring edge, and flanging 903 in stationary annular on interior ring edge, and below sound diaphragm 902, link a voice coil loudspeaker voice coil 8, this voice coil loudspeaker voice coil 8 is between external press edge 901 and interior flanging 903, and voice coil loudspeaker voice coil 8 and the junction of sound diaphragm 902 are a vebrato source point 1301; The external press edge 901 of vibration sounding diaphragm 9 is fixedly fitted in the external annulus 322 of magnetic conduction pedestal 3 opening 325 by system, and interior flanging 903 fixedly fits in the internal ring wall of magnetic conduction pedestal 3, voice coil loudspeaker voice coil 8 is made to be positioned in the accommodation space of magnetic conduction pedestal 32, and in the magnetic gap formed between the first magnet 501 and the second magnet 502, and the opening 325 of magnetic conduction pedestal 3 accommodation space 32 can be closed by this vibration sounding diaphragm 9;
Magnetic field is provided via the first magnet 501 and the second magnet 502, magnetic conduction effect is reached again by the first magnetic guiding loop 601 and the second magnetic guiding loop 602, and voice coil loudspeaker voice coil 8 provides magnetic gap loop, and the effect of magnetic conduction is reached by this magnetic conduction pedestal 3, and reaching permeation functions through air-vent 321, the air draught produced when vibration sounding diaphragm 9 is vibrated can be discharged via air-vent 321;
As shown in Figure 8, the sound diaphragm 902 of the present invention can be composite film material 9021.And one of them or its combination that the material that sound diaphragm 902 adopts can select high molecule plastic, high molecule plastic fiber, organic fiber, metal etc. to rush pressur rolling forming with film morphology or braiding form all can; And annular external press edge 901 or the interior flanging 903 of annular are not restricted to circle, circle is only the preferred forms of this case, and be not used to the scope of the claims limiting to this case, be all included in the scope of the claims of this case as long as external press edge 901 or interior flanging 902 are arranged to Elliptical circle, triangle, quadrangle, polygonal or other geometric figures.
In addition, the bottom surface outside wall surface of this magnetic conduction pedestal 3 can be binded a terminal block 4, this terminal block 4 is be welded and fixed for voice coil loudspeaker voice coil 8 line body, to reach the object of conductive loops;
Alt phonation unit 2 is be incorporated in the hollow located space 31 of magnetic conduction pedestal 3 by link means by system, this link tool can be and binds or fastening or tight fit etc., bass phonation unit 100 is made to be sheathed on outside alt phonation unit 2, reach bass phonation unit 100 coaxial with alt phonation unit 2, and the vebrato source point 1301 of this bass phonation unit 100 is be positioned on same level datum level with the vebrato source point 1302 of alt phonation unit 2, phonation unit is made to have wider electrical adjusting range, coaxially not only bass can be sent but also alt can be sent with source of sound loud speaker,
And electric signal line all connected by the terminal block 4 of the terminal block 14 of alt phonation unit 2 after magnetizing and magnetized bass phonation unit 100.
In addition, this magnetic conduction pedestal 3 bottom surface outside wall surface also can be bonded with air-flow damping gauze 1, and this air-flow damping gauze 1 is covered by air-vent 321, in order to adjust the air mass flow in magnetic conduction pedestal 3 accommodation space 32;
In addition, above described bass phonation unit 100 and alt phonation unit 2, dustproof protective cover 10 is provided with; The sound of bass phonation unit sends from the bass sender 11 of dustproof protective cover 10; The sound of alt phonation unit sends from the alt sender 12 of dustproof protective cover.
Refer to shown in Fig. 5 and Fig. 6, the difference place of itself and Fig. 1 ~ 4 again in, this bass phonation unit 100 and alt phonation unit 2 are nested with junction and are provided with a resistance magnet ring 7, the similar tube-in-tube structure of this resistance magnet ring 7, inner system places location for middle pitch height phonation unit 2, outside system is nested with fixing for the magnetic conduction pedestal 3 of bass phonation unit 100, make this resistance magnet ring 7 can separate the magnetic field of bass phonation unit 100 and the magnetic field of alt phonation unit 2, and other structures are all identical with Fig. 1 ~ 4, do not repeating in this.
Refer to shown in Fig. 7 A ~ Fig. 7 F, wherein, this alt phonation unit 2 can move iron phonation unit 2a (as shown in Figure 7 A) by square electric magnetic-type, moving-coil type phonation unit 2b (as shown in Figure 7 B), silk ribbon formula phonation unit 2c (as seen in figure 7 c), piezo-electric ceramic sounding chip module 2d (as illustrated in fig. 7d), piezo-electric ceramic sounding chip bonding sounding vibrating diaphragm 2e (as seen in figure 7e), semiconductor chip phonation unit 2f (as shown in Figure 7 F) replaces, and Fig. 7 A ~ Fig. 7 F shownschematically alt phonation unit 2a ~ 2f all comprise an alt terminal block 14 and alt vebrato source point 1302, and except on Fig. 7 F shownschematically conductor chip phonation unit 2f without setting out except sound hole, other alt phonation units 2a ~ 2f is all provided with an alt sender 12, above-mentioned alt phonation unit 2 is only this case preferred embodiment, and be not used to the claim of limiting to this case.
In addition, the Various embodiments that Fig. 1 ~ Fig. 8 is disclosed, can be applied in various loudspeaker product or earphone products, this earphone products is incorporated into aural headphone, ear-canal earphones, back of the body neck formula earphone, headphone.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. coaxial with a source of sound loud speaker, comprising:
One alt phonation unit, has vebrato source point and a terminal block;
One bass phonation unit is single magnetic gap mechanism, has vibration sounding diaphragm and the terminal block of single-tone circle, and has a vebrato source point;
This bass phonation unit is coaxially nested with outside this alt phonation unit, and the vebrato source point of this bass phonation unit is positioned on identical level reference with the vebrato source point system of alt phonation unit.
2. according to claim 1 coaxial with source of sound loud speaker, it is characterized in that: this alt phonation unit is moving-iron type phonation unit, circular electric magnetic-type moves iron phonation unit, square electric magnetic-type moves iron phonation unit, the wherein one of moving-coil type phonation unit, silk ribbon formula phonation unit, piezo-electric ceramic sounding chip module, piezo-electric ceramic sounding chip bonding sounding vibrating diaphragm or semiconductor chip phonation unit.
3. according to claim 1 coaxial with source of sound loud speaker, it is characterized in that: the junction that is nested with of this alt phonation unit and bass phonation unit is provided with a resistance magnet ring, in order to the magnetic field in the magnetic field and alt phonation unit of separating bass phonation unit.
4. according to claim 3 coaxial with source of sound loud speaker, it is characterized in that: described resistance magnet ring is a tube-in-tube structure, inner system places location for middle pitch height phonation unit, and outside system is nested with fixing for the magnetic conduction pedestal of bass phonation unit.
5. according to claim 1 coaxial with source of sound loud speaker, it is characterized in that: this bass phonation unit comprises:
One ring-type magnetic conduction pedestal, the core of this ring-type magnetic conduction pedestal is the located space of hollow form, and this located space system is nested with fixing for alt phonation unit; The body part of this ring-type magnetic conduction pedestal is provided with the ring-type accommodation space of end face opening, and the body part of this ring-type magnetic conduction pedestal comprises the internal ring wall and external annulus that form described end face opening;
One ring-type first magnet and ring-type second magnet, described ring-type first magnet is arranged on the endocyclic position of described ring-type accommodation space, fits with described internal ring wall; Described ring-type second magnet is arranged on the outer ring position of described ring-type accommodation space, fits with described external annulus; Magnetic gap is formed between described ring-type first magnet and ring-type second magnet;
One first magnetic guiding loop and one second magnetic guiding loop, described first magnetic guiding loop is fixed on the upper surface of described ring-type first magnet, and described second magnetic guiding loop is fixed on the upper surface of described ring-type second magnet;
One vibration sounding diaphragm, this vibration sounding diaphragm system comprises a ring-type sound diaphragm, described ring-type sound diaphragm is fixed on the internal ring wall of body part and the end of external annulus of described ring-type magnetic conduction pedestal, a voice coil loudspeaker voice coil is connected below ring-type sound diaphragm, form a vebrato source point in junction, voice coil loudspeaker voice coil stretches in the magnetic gap formed between described ring-type first magnet and ring-type second magnet;
One terminal block, this terminal block system is connected on the outer bottom of this magnetic conduction pedestal, is the connecting line for fixing voice coil loudspeaker voice coil.
6. according to claim 5 coaxial with source of sound loud speaker, it is characterized in that: this vibration sounding diaphragm more comprises flanging in an external press edge and, the outer ring edge of sound diaphragm is fixed in this external press edge system, and the interior ring edge of sound diaphragm is fixed in interior flanging system, external press edge connects the end of the external annulus of ring-type magnetic conduction pedestal, and interior flanging connects the end of the internal ring wall of ring-type magnetic conduction pedestal, close described ring-type magnetic conduction pedestal at opening part.
7. according to claim 5 coaxial with source of sound loud speaker, it is characterized in that: the bottom surface of this magnetic conduction pedestal is provided with air-vent, discharge outside accommodation space in order to the air that vibration sounding diaphragm is produced because of vibration.
8. according to claim 7 coaxial with source of sound loud speaker, it is characterized in that: more comprise an air-flow damping gauze, this air-flow damping gauze system binds at magnetic conduction pedestal outer bottom, and is covered by air-vent, in order to adjust the air mass flow of chamber.
9. according to claim 5 coaxial with source of sound loud speaker, it is characterized in that: this sound diaphragm is composite film material.
10. according to claim 5 coaxial with source of sound loud speaker; it is characterized in that: more comprise a dustproof protective cover; this dustproof protective cover system is arranged at above bass phonation unit and alt phonation unit; the sound of this bass phonation unit sends from the first sender of dustproof protective cover, and the sound of alt phonation unit sends from the second sender of dustproof protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257019.XU CN204157050U (en) | 2014-01-15 | 2014-05-19 | Coaxial with source of sound loud speaker |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025269.0 | 2014-01-15 | ||
| CN201420025269 | 2014-01-15 | ||
| CN201420257019.XU CN204157050U (en) | 2014-01-15 | 2014-05-19 | Coaxial with source of sound loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204157050U true CN204157050U (en) | 2015-02-11 |
Family
ID=52515135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420257019.XU Expired - Fee Related CN204157050U (en) | 2014-01-15 | 2014-05-19 | Coaxial with source of sound loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204157050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046666A (en) * | 2017-03-06 | 2017-08-15 | 深圳市冠旭电子股份有限公司 | A kind of sound-producing device and earphone |
| CN110446139A (en) * | 2019-08-20 | 2019-11-12 | 歌尔股份有限公司 | Acoustic apparatus and electronic equipment |
-
2014
- 2014-05-19 CN CN201420257019.XU patent/CN204157050U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046666A (en) * | 2017-03-06 | 2017-08-15 | 深圳市冠旭电子股份有限公司 | A kind of sound-producing device and earphone |
| CN110446139A (en) * | 2019-08-20 | 2019-11-12 | 歌尔股份有限公司 | Acoustic apparatus and electronic equipment |
| CN110446139B (en) * | 2019-08-20 | 2022-03-15 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| US11910139B2 (en) | 2019-08-20 | 2024-02-20 | Goertek Inc. | Acoustic device and electronic apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 516223 Dongfeng management area, Xinxu Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: Dongsheng (Huizhou) Electronics Co.,Ltd. Address before: 516226 Dongmei earphone factory, Dongfeng management area, Xinxu Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: Huiyang Dongmei Audio Products Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |